<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Document</title>
    <style>

      /*点击高亮我们需要清除清除  设置为transparent 完成透明*/
      a {
        -webkit-tap-highlight-color: transparent;
      }

      /*在移动端浏览器默认的外观在iOS上加上这个属性才能给按钮和输入框自定义样式*/
      input {
        -webkit-appearance: none;
      }

      /*禁用长按页面时的弹出菜单*/
      img,
      a {
        -webkit-touch-callout: none;
      }

      img:nth-child(2) {
        width: 50px;
        height: 50px;
      }

    </style>
  </head>

  <body>
    <!-- 模糊的 -->
    <img src="images/apple50.jpg" alt="" />
    <!-- 我们采取2倍图 -->
    <img src="images/apple100.jpg" alt="" />
    <hr />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <br />
    <a href="#">黑马</a>
    <br />
    <input type="button" value="按钮" />
  </body>
</html>
